this is actually an official bug that they're looking into (hopefully itll get resolved) there is a work around right now, but it requires using tesvsnip... theres a thread here dealing with it, but i dont feel like searching the pages for it. I actually tried it and it did make an npc with all matching textures... but after a few sessions of skyrim that same mod caused my game to crash at the main menu... i have no idea why it would work one session and not the next.
so search for tesvsnip? Ill give it a shot cheers.
figured out why my game was crashing... this workaround requires you to create a master file... I wound up deleting that master file, and thats when the esp i made from it started crashing my main menu. seems like as long as the esm is there, it wont crash... just there, you dont have to have that esm mod checked to load when you play.